I'm probably more jumping in with an urge to participate than adding something of real value. I'm going to say that rather than worn as a tiara I think the bracelet is being worn as a hair ornament supported by her hair rather than mounted on a frame. Making it very unlikely as an easy repeat.

However what I think is very interesting is that it is quite easily remounted as a clasp from a multi seed pearl bracelet to one of more more substantial/mature pearls.

Do we know where the larger pearls originate or which clasp they originated with? The clasp change presumes the larger pearls at least have another clasp they can be used with?

--Previous Message-- : This piece has briefly been discussed before, : but here's some more info and photos. : : Crown Princess Martha of Norway received a : versatile bracelet when she christened the : American Liner "Oslofjord" in : Amsterdam 1949. : This pearl bracelet with a squared diamond : & emerald clasp can also be mounted as a : tiara. : : Martha was only photographed with it as a : bracelet, but Queen Sonja has worn it as a : tiara (December 1968) and as a bracelet. : She has also worn the diamond & emerald : clasp on Queen Alexandra's pearl choker. : : : : : : Pathe newsreel: Launching of the : "Oslofjord" in 1949 (Flash : player): : https://www.britishpathe.com/video/launching-the-oslofjord-new-norwegian-liner/: : Hope we will see this piece worn as a tiara : soon. It's almost 50 years since the last : time! : : :